S3F84B8_UM_REV 1.00 4 CONTROL REGISTERS
4-33
4.1.34 RP0 — REGISTER POINTER 0: D6H, BANK0
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
Reset Value
1 1 0 0 0 – – –
Read/Write
R/W R/W R/W R/W R/W – – –
Register Pointer 0 Address Value .7–.3
Register pointer 0 can independently point to one of the 208-byte working register
areas in the register file. Using the register pointers RP0 and RP1, you can select
two 8-byte register slices at one time as active working register space. After a reset,
RP0 points to address C0H and selects the 8-byte working register slice C0H–C7H.
.2–.0 Not used for the S3F84B8.
4.1.35 RP1 — REGISTER POINTER 1: D7H, BANK0
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
Reset Value
1 1 0 0 1 – – –
Read/Write
R/W R/W R/W R/W R/W – – –
Register Pointer 1 Address Value .7–.3
Register pointer 1 can independently point to one of the 208-byte working register
areas in the register file. Using the register pointers RP0 and RP1, you can select
two 8-byte register slices at one time as active working register space. After a reset,
RP1 points to address C8H and selects the 8-byte working register slice C8H–CFH.
.2–.0 Not used for the S3F84B8.